Atomic decomposition-based radar complex signal interception

Author

Pez-Risueñ, G. Ló ; Grajal, J. ; Yeste-Ojeda, O.

Volume

150

Issue

4

fYear

2003

Abstract

Atomic decomposition (AD) extracting the time-frequency characteristics of signals has been investigated in the frame of complex radar signal detection and classification. AD uses the chirplet dictionary to obtain high-resolution time-frequency representations. Significant improvements on previous AD algorithms have been introduced to increase the detection performance (dictionary extension) and to overcome the resolution problems of AD (greediness detector). An interception receiver based on AD has been analysed and characterised. It is composed of a two-stage scheme: detection of signal components through an AD-based detector, and modulation classifier using AD as a feature extractor

Keywords

feature extraction <at. decomp.-based radar complex sig. interception>; radar detection <at. decomp.-based radar complex sig. interception>; radar resolution <at. decomp.-based radar complex sig. interception>; signal classification <at. decomp.-based radar complex sig. interception>; signal representation <at. decomp.-based radar complex sig. interception>; time-frequency analysis <at. decomp.-based radar complex sig. interception>; AD algorithms; atomic decomposition-based radar signal interception; chirplet dictionary; complex signal interception; dictionary extension; feature extractor; greediness detector; high-resolution time-frequency representations; interception receiver; modulation classifier; radar signal classification; radar signal detection; time-frequency characteristics;

fLanguage

English

Journal_Title

Radar, Sonar and Navigation, IEE Proceedings -

Publisher

iet

ISSN

1350-2395

Type

jour

DOI

10.1049/ip-rsn:20030680

Filename

1241448